The invention discloses an automatic blanking discharging de-oiling machine which comprises a rotating drum, a rotating shaft, a power device, a supporting shaft, a feeding hopper and a frame, wherein the rotating drum is connected with the rotating shaft; the rotating shaft is connected with the power device; the power device is fixed on the frame; a plurality of oil draining holes are uniformly distributed in a drum wall of the rotating drum; a central pillar is arranged in the rotating drum; a spiral baffle is arranged on the central pillar; a blanking channel is arranged in the supporting shaft; a blanking hole is arranged in a side wall of an end part of the blanking channel in the rotating drum; the interior of the rotating drum and the blanking channel are communicated with each other by the blanking hole; the other end of the blanking channel is connected with the feeding hopper; a discharging door is arranged on the end part of one side, which is connected with the rotating shaft, of the rotating drum; a protecting fence is arranged on the side, connected with the rotating shaft, of the rotating drum; an oil baffle cover is arranged on the outer periphery of the rotating drum; an oil collecting slot is arranged in the frame under the oil baffle cover. According to the automatic blanking discharging de-oiling machine, the blanking channel and the feeding hopper are connected with each other and the discharging door is arranged on the rotating drum, so that the automatic blanking and discharging of the de-oiling machine are realized, the de-oiling process is continuously performed and the de-oiling efficiency is increased.